FR2148599B1 - - Google Patents
Info
- Publication number
- FR2148599B1 FR2148599B1 FR7228921A FR7228921A FR2148599B1 FR 2148599 B1 FR2148599 B1 FR 2148599B1 FR 7228921 A FR7228921 A FR 7228921A FR 7228921 A FR7228921 A FR 7228921A FR 2148599 B1 FR2148599 B1 FR 2148599B1
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/02—Manufacture of electrodes or electrode systems
- H01J9/12—Manufacture of electrodes or electrode systems of photo-emissive cathodes; of secondary-emission electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/34—Photo-emissive cathodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2201/00—Electrodes common to discharge tubes
- H01J2201/34—Photoemissive electrodes
- H01J2201/342—Cathodes
- H01J2201/3421—Composition of the emitting surface
- H01J2201/3423—Semiconductors, e.g. GaAs, NEA emitters
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
- Light Receiving Elements (AREA)
- Liquid Deposition Of Substances Of Which Semiconductor Devices Are Composed (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3779071 | 1971-08-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2148599A1 FR2148599A1 (en) | 1973-03-23 |
| FR2148599B1 true FR2148599B1 (en) | 1978-04-28 |
Family
ID=10399020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7228921A Expired FR2148599B1 (en) | 1971-08-11 | 1972-08-10 |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS4829369A (en) |
| CA (1) | CA998461A (en) |
| DE (1) | DE2239417A1 (en) |
| FR (1) | FR2148599B1 (en) |
| GB (1) | GB1342005A (en) |
| NL (1) | NL7210987A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4019082A (en) * | 1975-03-24 | 1977-04-19 | Rca Corporation | Electron emitting device and method of making the same |
| JPS58158808A (en) * | 1982-03-15 | 1983-09-21 | 三菱電機株式会社 | Electrodeposition insulating device |
-
1971
- 1971-08-11 GB GB1342005D patent/GB1342005A/en not_active Expired
-
1972
- 1972-08-10 DE DE19722239417 patent/DE2239417A1/en active Pending
- 1972-08-10 CA CA149,114A patent/CA998461A/en not_active Expired
- 1972-08-10 FR FR7228921A patent/FR2148599B1/fr not_active Expired
- 1972-08-11 NL NL7210987A patent/NL7210987A/xx not_active Application Discontinuation
- 1972-08-11 JP JP8065472A patent/JPS4829369A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| GB1342005A (en) | 1973-12-25 |
| JPS4829369A (en) | 1973-04-18 |
| DE2239417A1 (en) | 1973-02-15 |
| FR2148599A1 (en) | 1973-03-23 |
| NL7210987A (en) | 1973-02-13 |
| CA998461A (en) | 1976-10-12 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |